ScotomaPerceptual DistortionVisual Field TestsVisual FieldsPerceptual ClosureOphthalmoscopyRetinal DiseasesOphthalmoscopesFixation, OcularVisual AcuityMacula LuteaReadingHemianopsiaMacular DegenerationVision, LowTelescopesOtoacoustic Emissions, SpontaneousFovea CentralisNight VisionAfterimageNystagmus, OptokineticFundus OculiEye MovementsVision TestsFluorescein AngiographySensory AidsPhotic StimulationVision DisordersForm PerceptionSaccadesRetina